Portion of a vehicle interior



FIG. 1 is a perspective view of the right-hand side of a portion of a vehicle interior showing my new design;

FIG. 2 is a perspective view of the left-hand side thereof;

FIG. 3 is another perspective view of the right-hand side thereof;

FIG. 4 is another perspective view of the left-hand side thereof; and,

FIG. 5 is an elevational view thereof.

The heavy wavy dashed line denotes a boundary of the claim and forms no part of the claimed design. 

The ornamental design for a portion of a vehicle interior, as shown and described. 